What Is SDRAM (Synchronous Dynamic Random-Access Memory)?

Introduction to SDRAM

What is SDRAM?

These commands can be pipelined to improve performance and complete the previously started operations while receiving new commands.

Compared with asynchronous DRAM, this makes SDRAM have higher concurrency and higher data transfer rates.

SDRAM latency is not inherently lower (faster) than asynchronous DRAM.

SDRAM also provides registered varieties for systems that require greater scalability, such as servers and workstations.

The bus protocol was also simplified to achieve higher performance.

(In particular, the burst termination command is removed.)

This allows the bus rate of SDRAM to be doubled without increasing the clock rate of internal RAM operations.

DDR4 chip operating voltage is 1.2V or lower.

It is pin-compatible with standard SDRAM, but the commands are different.

This technology was a potential competitor of RDRAM because VCM was not as expensive as RDRAM.